Bridge work



June 14 1927. 1,632,744

L. A. 'KIANDER BRIDGE WORK Filed June 8, 1925 INVENTOR L azwwz ca KW BY I Y UNITED E Pa tente d June 14, 192 7.

LAWRENCE A.

PATENT j OFFICE. l i I ANDE R, OF NEW roux, 1v. Y. ANNA MATHIQLDAVKIANDEIQ nxnorrcmrx or SAIDY'LAWRENCE A. 'KIANDER, DECEASED.

. BRIDGE WORK.

Application filed June 8,1825. Serial m. 35,522.

i 1 Thi invention relates'to the art of dental surgery and. particularly to artificial denturesorbridge'work; andthe object of the invention is to provide an improved bridge work for one or more artificialteeth which is p of such structure as to rigidly and securely support the artificial tooth or, teeth inposi- 'tion in such manner as to expose the least amount of metal ofthe bridge work externally of the teeth or the exposed areas thereof Wherebythe presentobjections to crowns and like constructions are obviated; a further object being to provide a bridge construction which by reason of the method of its assemblage in connection with the sound and permanent teeth will obviate thenecessity of grinding oh the surfaces of sound or healthy teeth to facilitate'the attachment of the bridge thereto in accordance with the pesent methods and especially When such sound teeth are d sposed angularly with'reference to a vertical or perpendicular plane extending through-the jaw, in which said lowing specification, of 'vvhichthe accom l a further object being construction, the securing or mount-mg means of which is such as to firmly'and securel named teeth.

teeth are mounted, in which instances it is "customary with the present method of dental surgery to grind ofi' large areas of'the teeth I and many times grinding to'the sensitive structure of the tooth, resultin'gin time, in the decay or infection of such'ground teeth; to provide a bridge engage the teeth in connection with whici the same is mounted; and with these and other ob ects in View, the lnvention consists in a. device of the class and for the purpose specified, which is simple in COllStIUCtlOIl, efficient in use, and which 15 constructed as hereinafter described and claimed.

l The invention is fully disclosed in the fol p'anying drawing forms a part, in which the separate parts of my improvement are desig-' nated by suitable reference characters in each of th'eviews, and in Which f Fig; 1 is an outside face viewof a part of jaw indicating two natural teeth between connection with and supportedby said first Fig. 2'is a section on the line2 2 of Fig. 3 shows sectional detail views of a number'of parts of the device in superimposed relation, the section of one of the parts eing on the line 3--3 of Fig. 4 of the draw mg;-

Fig. 4 is a plan view ofo'ne of the parts shown in'Fig. 3; and, y F 1g. 51s a plan view of another of said parts.

. It will be understood that my invention is adapted for the purpose of mounting one,

two or more artificial teeth in connection the same construction but being of different form to represent the natural arrangement of teeth, or to reproduce the teeth removed from a given jaw,'and comprise metal backingmembers 10 and 11 composedof any suitable'or desirable metal such for an example, gold, said members 10 and 11 having substantially flat outer faces provided thereon with pro .ecting pins l of cylindrical form; adapted to engage socketsin the porcelain or other artificial tooth representation' facings, one of which only is shown H mounted in position, namely the face 10".

- It will be noted when these facing-s; are 'mounted 111 position, the metal backings 10 and '11- are not visible when viewed from teeth to give strength and durability thereto.

"the front of the teethythe upper endsof said backings extending to thetop portion of the The backings 10 and ll ofthe artificial tooth structure may be made integral or maybe separately formed and soldered or other- Wise joined together as at 13, and'in practice Imount in the backings 10 and llyboxshaped socket members 14 which are preferably arranged adjacent one side portion of which are two artific al teeth mounted in I which; are countersunk in said backings and lie fiushly with the substantially flat outer faces of said backings. The members 1 1 or one of them is shown in detail in Figs. 3 and 4 of the drawing, said members being each provided in the outer face thereof with a dove-tailed socket 15 opening out through one side edge as seen at 16 and centrally of said member is an inwardly directed tubular member 17 internally threaded as seen at 18 to receive a screw or other threaded member 19 as seen in Figs. 2 and 3 of the drawing. The inner end of the tubular member lTmay be closed if desired. The members let are so arranged on the backings 10" and 11 as to direct the opening 16 of the dove-tailed socket 15 out through one side edge of each of said backings or the outer edges thereof, when said backing-s are coupled together as seen in the drawing.

I also provide'an attaching plate 20, one end of which is dove-tailed to fit snugly within the socket l and provided with a countersunk aperture 21 to receive the head of the screw 19 and the other end of said plate is extended angularly with reference to the first named end and the free edge of which is tapered as seen at 22.

I also provide in the construction shown, two tooth band members 23 and 24; which are fashioned from thin metal to conform wit-h and fit snugly upon the. rear faces of two natural teeth 25 and 26 respectively in such manner that the back portions thereof are not visible when viewing the teeth 9-5 and 26 from the front and each of said members 23 and 2a are provided with band portions 23 and 24 formed integrally therewith and which extend forwardly around the front of the base portion of the teeth 25 and 26 adjacent the roots of said teeth and the free ends ofsaid band portions 23 and 27h are tapered or beveled slightly and adapted to be secured to the plates 20 as seen at 27 in Fig. 2 of the drawing and indicated in Fig. 3 of the drawing, this construction and operation making the separate plates 20 integral with the band portions 23 and 24 as will be apparent.

It will be understood that the band members 23 and Ql may be formed integrally with the backings and 11 when said backings are integrally formed or the back ing 1O and member-23 may be integrally formed and the backing 11 and member 2% integrally formed and these parts secured together as at 13 or all of the parts 10 and 11. 23 and 2A may be independently formed and secured together. In mounting the artificial teeth in position by my improved bridge construction, and after said artificial teeth including the backings and facings thereof have been formed and the members 1% mounted in the backings 10 and 11 or secured therein in the formation of said hackings, and after the band members 23 and 24 have been formed and properly fitted in accordance with the dental surgical art and especially after the band portions 23 and 24: have been fitted and formed around the natural teeth and 26, the free ends of said bands are secured to the plates 20 as at 27 by soldering or in any other manner, and in such a way as to properly line the dovetailed end portion of the plates 20 with the dove-tailed sockets of the members 14 whereby the passing of the screws 19 through the apertures 21 of the plates and into the threaded apertures 18 of the sleeve 17 will bring the outer faces of the plates 20 flush with the outer faces of the backings 10 and 11, it being preferred that a slight clearance be allowed between the plates .20 and the outer faces of the sockets 15 of the members 14 to permit inward movement of the plates 20 to place the band portions 23 and 2t under slight tension to firmly and rigidly engage the teeth and 2G. The clearance referred to is indicated at 28 in Fig. 2 of the drawing. It will be understood that after the band members 23 and Ql have been mounted in position to properly support the backings of the artificial teeth between the natural teeth 25 and 26, the facings of the articficial tooth structure are mounted and secured in position in the usual manner by necessity of grinding healthy teeth to permit of the mounting of bridge work and other artificial surgery in connection therewith, especially in grinding off the adjacent side portions of teeth arranged at an inclined plane with reference to a vertical plane through the teeth and jaw structure. It may be necessary however. with my improved construction, as in other constructions to grind away a part of the teeth or that part of the teeth on which the band members 'are'mounted to compensate for the bite, but aside from this operation, no other grinding of the teeth is necessary.

It will be apparent that the tooth facings employed and mounted upon the backings 10 and 11 serve when secured in position by cementing or otherwise to retain the plates 20 and screws 19 against accidental displacement and also to conceal such mountings, while the dove-tail form of the plates 20 and the dovetail socket 15 retain the hand I portions and 224 against" lateral dis;

placement, the. dovetail structure acting as an anchoring means as will'be apparent. This construction produces a strong and durable structure,.;it being understood that the screws 19 merely serve to move the plates and described, nor to the method of their mounting inconnection with one or more of the backings for artificial teeth, nor am I necessarily limited to the details of con- *struction herein shown and described, the

' arrangement thereof or the method of mounting and assembling the same, and other changes in and modifications of the construction herein shown and described,

may be made within the scope of theappended claims without departing from'the' spirit of my invention or sacrificing its advantages. v

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A bridge construction comprising an artificial tooth structure, tooth engaging means atthe opposite sides of said artificial tooth structure and inte ral therewith, said means involving adjusta le clamping bands for fixedly securing and supporting the artificial tooth structure in COIlllGCtlOIl; with teeth disposed at the opposite sides there-- of, said artificial tooth structure including a backing member, and means mounted in and. constituting part of said member for retaining the clamping bands "in connection therewith... r

2. A bridge construction comprising an artificial tooth structure, tooth engaging means at the opposite sides of said artificial tooth structure and integral therewith, said means involving adjustable clamping bands for fixedly securing and supporting the artificial tooth structure in connection with 7 means.

teeth'disposed at the opposite sides thereof, said artificial tooth structure including a backing member, means mounted in and constituting part of said member for retaining the clamping bands in connection therewith, and an artificial tooth facing secured to said backingv and concealing said last named 3. A bridge construction comprising an artificial'tooth structure, band members disposed. at the opposite sides of said structure and integral therewith and including band portions adapted to encircle teeth disposed at the opposite sides of the artificial tooth structure, said artificial tooth structure comprising backing and facing members, and

means forsecuring the free ends of the band portions to said backing comprising means part.

secured to the ends of said band portions and mounted in said backing.

4. The herein described means for mounting'an artificial tooth structure comprising p a socket" member mounted'in said tooth structure, and a clamp band member including a tooth encirclingbandportion and a part adapted to be mountedin connection with the free end of said band portion to engage said socket member.

,5. The herein described means for mounting an artificial tooth structure comprising a socket member mounted in. said tooth structure, a clamp band member including a tooth encircling band portion, a part adapted to be mounted in. connection with the free end of said band portion to engage said socket member, means for retaining said part in said socket member, and said part and socket member being fashionedto I prevent lateral displacement thereof one upon the other.

6. The herein described means for mounting an artificial tooth structure comprising a socket member mounted in connection'with sald tooth structure, av clamp band member including a tooth encircling band portion, a

part adapted to be mounted in connection so I with said band portion to 'engagefsaid socket member, means for retaining said part in said socket member, said part and socket member being fashioned to prevent lateral displacement thereof one upon the other, and an artificial tooth facing mounted in connection with said artificial tooth structure and concealing said socket and 7. ing an artificial tooth structure comprising a socket member mountedin connection with said tooth structure, a clam band member including a tooth encircling b part adapted to be mounted in connection with said band portion to engage said socket member, means forlretaining said part in said socket member, said part and socket member being fashioned to prevent lateral displacement thereof one upon the other, an artificial tooth facing mounted in connection with said artificial tooth structure and concealing said socket andpart, and means for retaining saidfacing in position.

8. The herein described means for mounting an artificial tooth structure, said tooth structure having a backing member provided with a dove-tailed socket and a threaded sleeve part positioned centrally of the socket, comprising a clamp band member having a tooth engaging band portion ing an artificial tooth structure, said tooth The herein described means for mountand portion, a

llt)

structure havingv a-Vbacking member provided with a dove-tailed socket and a threaded sleeve part positioned centrally of the socket, comprising a clamp band mem- 5 her having a tooth engaging band portion and a dovetailed part adapted to be secured to the end of said band portion and to the end of the dove-tailed socket of said backing member, and a screw passed through said part and into the threaded sleeve of the backing member for retaining said parts together.

In testimony that I claim the foregoing as my invention I have signed my name this 4th day of June, 1925.

LAVRENCE A. KIANDER. 

